6516461 has 6 divisors (see below), whose sum is σ = 7580430. Its totient is φ = 5585496.

The previous prime is 6516439. The next prime is 6516463. The reversal of 6516461 is 1646156.

It can be written as a sum of positive squares in only one way, i.e., 3924361 + 2592100 = 1981^2 + 1610^2 .

It is not a de Polignac number, because 6516461 - 2¹⁴ = 6500077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6516463) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66446 + ... + 66543.

It is an arithmetic number, because the mean of its divisors is an integer number (1263405).

Almost surely, 2^6516461 is an apocalyptic number.

It is an amenable number.

6516461 is a deficient number, since it is larger than the sum of its proper divisors (1063969).

6516461 is a wasteful number, since it uses less digits than its factorization.

6516461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133003 (or 132996 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 6516461 is about 2552.7359832149. The cubic root of 6516461 is about 186.7829657215.

The spelling of 6516461 in words is "six million, five hundred sixteen thousand, four hundred sixty-one".